protected internal override Expression VisitLiteReference(LiteReferenceExpression lite)
{
var reference = Visit(lite.Reference);
var toStr = Visit(lite.CustomToStr);
return(Lite.ToLiteFatInternalExpression(reference, toStr ?? Expression.Constant(null, typeof(string))));
}
protected internal override Expression VisitLiteReference(LiteReferenceExpression lite)
{
var oldInLite = inLite;
inLite = true;
var result = base.VisitLiteReference(lite);
inLite = oldInLite;
return(result);
}
protected internal virtual Expression VisitLiteReference(LiteReferenceExpression lite)
{
var newRef = Visit(lite.Reference);
var newToStr = Visit(lite.CustomToStr);
if (newRef != lite.Reference || newToStr != lite.CustomToStr)
{
return(new LiteReferenceExpression(lite.Type, newRef, newToStr, lite.LazyToStr, lite.EagerEntity));
}
return(lite);
}
private Expression?LiteToString(LiteReferenceExpression lite, Expression typeId)
{
if (lite.CustomToStr != null)
{
return(Visit(lite.CustomToStr));
}
if (lite.Reference is ImplementedByAllExpression)
{
return(null);
}
if (lite.LazyToStr)
{
return(null);
}
if (IsCacheable(typeId))
{
return(null);
}
if (lite.Reference is EntityExpression entityExp)
{
if (entityExp.AvoidExpandOnRetrieving)
{
return(null);
}
return(binder.BindMethodCall(Expression.Call(entityExp, EntityExpression.ToStringMethod)));
}
if (lite.Reference is ImplementedByExpression ibe)
{
if (ibe.Implementations.Any(imp => imp.Value.AvoidExpandOnRetrieving))
{
return(null);
}
return(ibe.Implementations.Values.Select(ee =>
new When(SmartEqualizer.NotEqualNullable(ee.ExternalId, QueryBinder.NullId(ee.ExternalId.ValueType)),
binder.BindMethodCall(Expression.Call(ee, EntityExpression.ToStringMethod)))
).ToCondition(typeof(string)));
}
return(binder.BindMethodCall(Expression.Call(lite.Reference, EntityExpression.ToStringMethod)));
}
protected internal override Expression VisitLiteReference(LiteReferenceExpression lite)
{
if (lite.EagerEntity)
{
return(base.VisitLiteReference(lite));
}
var id = lite.Reference is ImplementedByAllExpression ||
lite.Reference is ImplementedByExpression ib && ib.Implementations.Select(imp => imp.Value.ExternalId.ValueType.Nullify()).Distinct().Count() > 1 ?
(Expression)binder.GetIdString(lite.Reference) :
(Expression)binder.GetId(lite.Reference);
var typeId = binder.GetEntityType(lite.Reference);
var toStr = LiteToString(lite, typeId);
//var toStr2 = Visit(toStr); //AdditionalBinding in embedded requires it, but makes problems in many other lites in Nominator
return(new LiteValueExpression(lite.Type, typeId, id, toStr));
}
